Factorization synchronous exercise (problem solving)

The following questions need to be carefully completed by students about factorization and synchronous practice of knowledge learning.

Multiple choice

1. It is known that y2+my+ 16 is completely flat, so the ` value of m is ().

A8 b . 4 c . 8d . 4

2. The following polynomials can be factorized by the complete square formula ().

a . x2-6x-9 b . a2- 16a+32 c . x2-2xy+4 y2 d . 4a 2-4a+ 1

3. All the following belong to the correct decomposition factor is ()

a . 1+4 x2 =( 1+2x)2 b . 6a-9-a2 =-(a-3)2

c . 1+4m-4 m2 =( 1-2m)2d . x2+xy+y2 =(x+y)2

4. Factorizing x4-2x2y2+y4, the result is ()

A.(x-y)4b .(x2-y2)4c .[(x+y)(x-y)]2d .(x+y)2(x-y)2

Answer:

1.C 2。 D 3。 B 4。 D

I believe that the students have completed the knowledge exercise of the above factorization synchronous exercise (multiple choice), and I hope that the students can do well in the exam.